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maxonik [38]
2 years ago
10

45% of what number is 9? Your answer

Mathematics
2 answers:
Fantom [35]2 years ago
6 0

Answer:

20

Step-by-step explanation:

9 x 100 / 45 = 20

larisa [96]2 years ago
4 0
The answer is 5
45/9=5
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8m^3 - 28m^2 + 6m - 21. You solve by factoring by grouping!!! quick please
Leya [2.2K]

Answer:

(2m - 7)(4 {m}^{2}  + 3)

Step-by-step explanation:

8m^3 - 28m^2 + 6m - 21 \\  = 4 {m}^{2} (2 {m}  - 7) + 3(2m - 7) \\  = (2m - 7)(4 {m}^{2}  + 3)

4 0
2 years ago
There are 28 nonfiction books and 35 fiction books in the teacher's collection. Which of the following expresses the ratio of no
Lostsunrise [7]
The answer is B) 4:5

First write the ratio out. To find the simplified expression, divide by the greatest common factor (GCF). In this case, the GCF of 28 and 35 is 7.

28:35
--- ----
7    7
=4:5

4:5 is the simplest form because you cannot simplify it further.
5 0
3 years ago
Read 2 more answers
18 necklaces made in 3 hours
STatiana [176]
18 necklaces in 3 hours

18/3 = 6

6 necklaces in 1 hour

hope this helps
5 0
3 years ago
Read 2 more answers
Solve Y, using the Pythagorean Theorem.
olchik [2.2K]

Answer:

y = 8.9

Step-by-step explanation:

8^2 + y^2 = 12^2

64 + y^2 = 144

subtract 64 from both sides

y^2 = 80

square root both sides

y = square root 80

y = 8.9

7 0
2 years ago
Read 2 more answers
If A is (-2,6) and B is (4,-2), what is the midpoint of AB
sashaice [31]
Given two points:
A(x₁,y₁) and B(x₂,y₂) the midpoint would be:
M((x₁+x₂)/2 , (y₁+y₂)/2)
In this case:_
A(-2,6) and B(4,-2); the midpoint would be:
M((-2+4)/2 , (6-2)/2)=(1,2)

Answer: the midpoint of AB is (1,2)
4 0
3 years ago
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